Abstract: A mandrel for use in a printing apparatus includes a substantially cylindrical mandrel shaft and a locking assembly including a stop ring, a locking ring, and a plurality of deformable rings which are slidably and coaxially mounted on the mandrel shaft. Each deformable ring has a cross-sectional profile in a cross-sectional plane in which the mandrel shaft axis extends, which profile includes a first arm and a second arm which are integrally connected to each other at a first connection point. The first arm and the second arms include an angle which is sharper in the unlocked position than in the locked position of the locking assembly. The first arm has a first-arm-end remote from the first connection point, which defines the outer diameter of the deformable ring. The second arm has a second-arm-end remote from the first connection point, which second-arm-end defines the inner diameter of the deformable ring.

Abstract: An assembly of a first and a second printing or converting apparatus is each at least provided with a number of printing or converting modules disposed one after the other in a main direction, through which in use a substrate web can be guided. The first and the second printing or converting apparatuses are respectively provided with a first and a second rail assembly each extending in a main direction next to or above the associated printing or converting modules and over which at least one processing station is movable. The assembly further includes a transfer assembly which is provided with rail assemblies which are configured to move the at least one processing station from the first rail assembly to the second rail assembly and vice versa and to buffer processing stations.

Abstract: A mandrel for use in a printing apparatus includes a substantially cylindrical mandrel shaft and plastic expansion rings that are slidably and coaxially mounted on the mandrel shaft. The mandrel also includes a locking assembly including a fixed stop ring and a single locking ring that is axially movably mounted on the mandrel shaft. The expansion rings are positioned between the stop ring and the locking ring. In the unlocked position of the locking ring the expansion rings are in a released state in which the axial compression and the radial expansion of the expansion rings are smaller than in a locked position of the locking ring. A printing cylinder sleeve can be fixedly connected to the mandrel by bringing the expansion rings in the radially expanded state. When the printing cylinder sleeve has to be exchanged, this is feasible when the expansion rings are in the released state.

Abstract: A mandrel for use in a printing apparatus includes a substantially cylindrical mandrel shaft and plastic expansion rings that are slidably and coaxially mounted on the mandrel shaft. The mandrel also includes a locking assembly including a fixed stop ring and a single locking ring that is axially movably mounted on the mandrel shaft. The expansion rings are positioned between the stop ring and the locking ring. In the unlocked position of the locking ring the expansion rings are in a released state in which the axial compression and the radial expansion of the expansion rings are smaller than in a locked position of the locking ring. A printing cylinder sleeve can be fixedly connected to the mandrel by bringing the expansion rings in the radially expanded state. When the printing cylinder sleeve has to be exchanged, this is feasible when the expansion rings are in the released state.

Abstract: A printing module of the flexo printing type, is provided with an anilox roller and an impression roller which are set up between two frame parts. Further, the printing module comprises a plate cylinder assembly which is receivable in a plate cylinder holder assembly. The plate cylinder holder assembly is provided with a plate-shaped body part with a supporting ring support surface with a special curve which is symmetrical with respect to a curve plane. Further, each plate cylinder holder assembly comprises a body part support assembly via which the body part is connected with the associated frame part, wherein the body part support assembly is configured for pivoting the body part about a first imaginary pivoting axis and for pivoting the body part about a second imaginary pivoting axis, such as to allow a substantially independent distance setting between the plate cylinder and the anilox roller on one side and between the plate cylinder and the impression roller on the other side.

Abstract: Printing module of the flexo printing type, provided with an anilox roller (16) and an impression roller (18) which are set up between two frame parts (12, 14). Further, the printing module comprises a plate cylinder assembly (20) which is receivable in a plate cylinder holder assembly (30, 32). The plate cylinder holder assembly is provided with a plate-shaped body part (34) with a supporting ring support surface (36) with a special curve (C) which is symmetrical with respect to a curve plane.

Abstract: A printing module for use in an offset printing apparatus, wherein the printing module is provided with an offset plate cylinder provided with an image to be transferred onto a substrate, wherein the printing module is further provided with an ink system for applying ink onto the offset plate cylinder, at least onto the image provided thereon, and with an impression cylinder, wherein the impression cylinder is arranged, at least in use, to hold the substrate passing between the cylinders against the offset plate cylinder to transfer the image from the offset plate cylinder directly onto the substrate. The invention further relates to an offset printing apparatus provided with such a printing module.

Abstract: Printing module provided with an impression roller, a rotary screen cylinder which is provided with a print image, which rotary screen cylinder in use abuts, with interposition of a substrate (S) to be printed, against the impression cylinder, wherein the printing module further comprises a driving shaft for driving the rotary screen cylinder, which driving shaft is provided substantially parallel to the rotary screen cylinder at a side thereof remote from the impression cylinder, and a bearing assembly, which bearing assembly is positioned adjacent the impression cylinder at a side thereof, in use, facing the driving shaft, wherein a distance between the driving shaft and the bearing assembly is adjustable such that the rotary screen cylinder is bearing mountable between the driving shaft and the bearing assembly.

Abstract: A printing module provided with a frame (12), an impression roller (13), a plate cylinder assembly (22), an anilox roller and a doctor roller, wherein the printing module comprises two receiving units disposed on opposite sides of the plate cylinder, which are connected with the frame, while fixation means are provided for fixating the plate cylinder assembly in the receiving units, the fixation means (26, 27) being situated substantially under the plate cylinder assembly (22), the fixation means preferably comprising two rods (46,46?) which, at an upwardly directed end, are provided with a hook (47,47?), the two hooks, on opposite sides of the plate cylinder, engaging a stationary shaft of the plate cylinder assembly, while on the rods a pull force is exerted for pressing the plate cylinder assembly into the receiving units.